Influence of pH on permeability of ceramic membranes and selectivity in ultrafiltration of model BSA and myoglobin solutions

• Autorzy: Gabriel-Półrolniczak U. , Szaniawska D. , Ćwirko K.

Identyfikatory

DOI

10.5277/epe140411

• Języki publikacji: EN

Abstrakty

EN

The results of ultrafiltration tests carried out with model BSA and myoglobin solutions using ceramic 50 and 150 kDa membranes have been presented. Membrane permeability and selectivity were investigated in function of pH, transmembrane pressure (TMP) as well as molecular modelling data for proteins such as size, geometrical parameters and pH of minimal free energy of folding. The study has shown that the permeate flux J(v) depends on TMP, whereas the protein rejection is mainly influenced by pH. The results demonstrated that molecular modelling data are not sufficient to explain the membrane behaviour and the membrane–protein charge interactions and fouling effects must be also considered to explain the rejection mechanisms.

Słowa kluczowe

EN

ultrafiltration; ceramic membranes; membrane permeability; bovine serum albumin; BSA; myoglobin; microfiltration

PL

ultrafiltracja; membrany ceramiczne; przepuszczalność błony; albumina surowicy bydlęcej; albumina; BSA; albuminy surowicy; mioglobina; mikrofiltracja

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2014
• Tom: Vol. 40, nr 4
• Strony: 135--141
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Gabriel-Półrolniczak U.

• Transport Engineering and Economics Faculty, Maritime University of Szczecin, ul. Henryka Pobożnego 11, 70-507 Szczecin, Poland

autor

Szaniawska D.

• Transport Engineering and Economics Faculty, Maritime University of Szczecin, ul. Henryka Pobożnego 11, 70-507 Szczecin, Poland

autor

Ćwirko K.

• Marine Engineering Faculty, Maritime University of Szczecin, Wały Chrobrego 1–2, 70-500 Szczecin, Poland

Bibliografia

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